. >> reporter: believing there is a link between obesity, and regularly drinking energy drinks. just 26% say the same thing about sports drinks. last november, voters shot down a soda tax in richmond. only 40% of people favor taxing sugary drinks. >> i live in richmond, and i supported the measure. >> i kind of think the tax is bad. it's not going to stop people from drinking soda. people who like soda, really like they're soda. >> reporter: the support increases dramatically if the money go to school nutrition programs. >>> a mother from san diego is making a tearful plea for help after her son vanished last week, during a visit to san francisco. 20-year-old christian hughes flew to the bay area from san diego nine days ago, he was supposed to fly home last thursday, but never made it. his mother says he hasn't been heard from since thursday morning and his cell phone has been turned off. >> i know he count have disappeared like this without -- he couldn't have disappeared like this without a trace. no one knows where he is. i seriously do not know what happened. >> hughes is d